13987240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3929}}^1$

素因数の和:4029

約数の個数: 32

約数和(自身を含む): 31833000

約数和(自身を除く): 17845760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3929, 7858, 15716, 19645, 31432, 39290, 78580, 157160, 349681, 699362, 1398724, 1748405, 2797448, 3496810, 6993620, 13987240]

約数ペア:

[(1, 13987240), (2, 6993620), (4, 3496810), (5, 2797448), (8, 1748405), (10, 1398724), (20, 699362), (40, 349681), (89, 157160), (178, 78580), (356, 39290), (445, 31432), (712, 19645), (890, 15716), (1780, 7858), (3560, 3929)]